{"id":1465,"date":"2026-03-26T07:47:28","date_gmt":"2026-03-26T07:47:28","guid":{"rendered":"https:\/\/mowergearbox.top\/product\/ep-1zs-380-lawn-mower-gearbox\/"},"modified":"2026-03-26T07:47:30","modified_gmt":"2026-03-26T07:47:30","slug":"ep-1zs-380-lawn-mower-gearbox","status":"publish","type":"product","link":"https:\/\/mowergearbox.top\/it\/product\/ep-1zs-380-lawn-mower-gearbox\/","title":{"rendered":"EP-1ZS-380 Lawn Mower Gearbox"},"content":{"rendered":"
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\n<\/p>\n

Built to Last: EP-1ZS-380 High-Power Rotary Cutter Gearbox<\/h2>\n

The EP-1ZS-380<\/strong> is built for the operator who values uptime above all else. This agricultural gearbox<\/a> handles 100 HP<\/strong> through precision-machined spiral bevel gears, supported by premium bearings and multi-stage sealing for maximum service life.<\/p>\n

\"EP-1ZS-380<\/div>\n

📈 EP-1ZS-380 Technical Specifications<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nSpecification<\/th>\n<\/tr>\n<\/thead>\n
Model Number<\/td>\nEP-1ZS-380<\/td>\n<\/tr>\n
Gearbox Type<\/td>\nHigh-Power Rotary Cutter Gearbox<\/td>\n<\/tr>\n
Gear Ratio(s)<\/td>\n1:1.24<\/td>\n<\/tr>\n
Teeth Configuration<\/td>\n21\/17\/17\/17<\/td>\n<\/tr>\n
Gear Module<\/td>\n7.0<\/td>\n<\/tr>\n
Rated Power<\/td>\n100 HP<\/td>\n<\/tr>\n
Input Speed<\/td>\n540 rpm<\/td>\n<\/tr>\n
Input\/Output Shaft<\/td>\nSpline<\/td>\n<\/tr>\n
Net Weight<\/td>\n42.5 Kg<\/td>\n<\/tr>\n
Gear Material<\/td>\n20CrMnTi Alloy Steel, Carburized & Hardened HRC 58-62<\/td>\n<\/tr>\n
Housing Material<\/td>\nDuctile Cast Iron (QT450-10)<\/td>\n<\/tr>\n
Seal Protection<\/td>\nMulti-Lip NBR\/FKM Oil Seals, IP65+ Rated<\/td>\n<\/tr>\n
Lubrication<\/td>\nSAE 80W-90 or 85W-140 EP Gear Oil<\/td>\n<\/tr>\n
Surface Treatment<\/td>\nE-Coat Primer + Polyester Powder Coat, Red Finish<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

⭐ Key Features & Engineering Advantages<\/h2>\n
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\n

⚡<\/p>\n

Hardened Dowel-Pin Alignment<\/h4>\n

Two precision ground dowel pins locate the housing halves within 0.02 mm, guaranteeing gear centre distance accuracy and eliminating assembly-induced backlash.<\/p>\n<\/div>\n

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🔄<\/p>\n

Zinc Flake Anti-Corrosion Fasteners<\/h4>\n

All external bolts finished with zinc-flake coating (Delta-Protekt) rated for 720 hours of salt spray, preventing seized fasteners during later disassembly.<\/p>\n<\/div>\n

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🔨<\/p>\n

Interference-Fit Bearing Installation<\/h4>\n

All bearings installed with controlled interference fit using induction heating, preventing the spinning-in-bore failures common in slip-fit assemblies.<\/p>\n<\/div>\n

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🌡<\/p>\n

Hardened Shift Fork Mechanism<\/h4>\n

For multi-ratio models: induction-hardened shift fork and detent system provides positive gear engagement with tactile confirmation, preventing half-engagement damage.<\/p>\n<\/div>\n

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🛠<\/p>\n

Hot-Dip Galvanized Mounting Hardware<\/h4>\n

Grade 10.9 mounting bolts hot-dip galvanized to AS\/NZS 4680, resisting corrosion in coastal and high-humidity farming regions like northern Queensland and Waikato.<\/p>\n<\/div>\n

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🔬<\/p>\n

Field-Rebuildable Modular Design<\/h4>\n

All internal components \u2014 gears, bearings, seals, shafts \u2014 are individually replaceable in the field with standard hand tools, eliminating the need to send units away for factory rebuild.<\/p>\n<\/div>\n<\/div>\n

\"Mower<\/div>\n

🔧 Equipment Compatibility & Cross-Reference<\/h2>\n
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🔄 Cross-Reference Compatibility for EP-1ZS-380<\/h3>\n

The EP-1ZS-380 is engineered as a direct replacement or upgrade for gearboxes fitted to equipment from leading manufacturers including:<\/p>\n

Kubota • Claas • Schulte • Kuhn • SaMASZ • Swaraj • TYM • Foton<\/p>\n

Disclaimer: Brand names above are referenced solely for compatibility identification. Ever-power Australia Mower Gearbox Co.,Ltd. is not affiliated with, endorsed by, or authorized by any listed manufacturer. All trademarks belong to their respective owners.<\/p>\n<\/div>\n

📚 Gearbox Selection Guide<\/h2>\n

The EP-1ZS-380 covers a specific performance envelope. Use these selection criteria to verify it aligns with your operational parameters:<\/p>\n

\n📌 Output Shaft Type Compatibility<\/summary>\n
The EP-1ZS-380 features Spline output. Verify your blade hub or implement rotor accepts this shaft type before ordering. We offer multiple output configurations \u2014 spline, taper, keyway, and flange \u2014 to match virtually any existing installation.<\/div>\n<\/details>\n
\n📌 Weight and Mounting Considerations<\/summary>\n
At 42.5 Kg, the EP-1ZS-380 is designed for large-frame tractor implements and heavy-duty mowers. Confirm your implement frame and three-point hitch can support this weight plus the weight of the blade assembly. Mounting bolt pattern and orientation should match your existing layout.<\/div>\n<\/details>\n
\n📌 Matching Gear Ratio to Blade Tip Speed<\/summary>\n
For the EP-1ZS-380 with ratio(s) 1:1.24, calculate your required blade tip speed: typically 4,500-5,500 m\/min for standard rotary cutters, 3,000-4,000 m\/min for heavy brush cutting, and 5,500-6,500 m\/min for fine finish mowing. Output RPM = PTO RPM \u00f7 ratio. Multiply by blade diameter to get tip speed.<\/div>\n<\/details>\n
\n📌 Sizing Power Rating to Tractor PTO HP<\/summary>\n
The EP-1ZS-380 is rated at 100 HP. Always select a gearbox rated at or above your tractor’s maximum PTO horsepower. For shock-load applications (mulching, brush clearing), add a 25-30% safety margin: a 60 HP tractor should use a 75+ HP rated gearbox.<\/div>\n<\/details>\n
\n📌 540 RPM vs 1000 RPM PTO Selection<\/summary>\n
The EP-1ZS-380 operates at 540 rpm. Most rotary mowers use 540 RPM PTO. The 1000 RPM standard is for larger implements on high-HP tractors. Never connect a 540 RPM gearbox to a 1000 RPM PTO \u2014 the doubled speed will destroy bearings and gears within minutes.<\/div>\n<\/details>\n

🌾 Typical Application Scenarios<\/h2>\n
\n
\n

🌾 Orchard and vineyard floor maintenance between rows<\/p>\n<\/div>\n

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🚘 Mining site vegetation rehabilitation and control<\/p>\n<\/div>\n

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🌱 Forestry site preparation and plantation row clearing<\/p>\n<\/div>\n

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⛰ Stubble incorporation and green manure tillage<\/p>\n<\/div>\n

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🌳 Municipal park and recreational reserve mowing<\/p>\n<\/div>\n<\/div>\n

\"Ever-power<\/div>\n

🛠 Installation & Setup Guide<\/h2>\n
    \n
  1. Connect the PTO drive shaft to the gearbox input spline. Push the shaft on fully and verify it telescopes freely through the complete range of three-point hitch travel.<\/li>\n
  2. After the first 10 hours of operation, re-torque all mounting bolts to specification and verify oil level. Perform the first oil drain and refill at 50 hours.<\/li>\n
  3. Disconnect the tractor PTO shaft and safely support the mower implement on jack stands or blocks before beginning the gearbox installation procedure.<\/li>\n
  4. For units weighing over 25 kg, use a chain hoist, engine crane, or two-person lift to position the gearbox. Never attempt to lift heavy gearboxes solo.<\/li>\n
  5. Fill the gearbox with the recommended gear oil (SAE 80W-90 or 85W-140 EP) to the level indicated on the sight glass or dipstick. Do not overfill.<\/li>\n
  6. Before operating at full load, run through a graduated break-in sequence: 30 minutes at half-throttle, then 30 minutes at three-quarter throttle, before engaging full PTO speed.<\/li>\n
  7. Inspect the implement mounting pad for flatness using a straightedge. Any warping exceeding 0.5 mm should be corrected before the new gearbox is installed.<\/li>\n<\/ol>\n

    ❓ Frequently Asked Questions<\/h2>\n
    \n
    \n❓ Do you offer technical support after purchase?<\/summary>\n
    \n

    Yes. Our technical team provides installation guidance, troubleshooting support, and maintenance advice via phone, email, and video call. We also offer on-site training for fleet operators and dealer technicians.<\/p>\n<\/div>\n<\/details>\n

    \n❓ Is this gearbox safe to run at 1000 RPM PTO speed?<\/summary>\n
    \n

    This unit is rated for 540 RPM input. Operating at 1000 RPM without the correct gear set will over-speed bearings and gears, causing rapid failure. Contact our team if you need a 1000 RPM-rated configuration.<\/p>\n<\/div>\n<\/details>\n

    \n❓ Can I mount this gearbox at non-standard angles?<\/summary>\n
    \n

    Most models are designed for vertical or horizontal output as specified. Mounting at unusual angles can affect oil distribution. Contact our engineering team to confirm suitability before installing in a non-standard orientation.<\/p>\n<\/div>\n<\/details>\n

    \n❓ How do I identify when my gearbox needs repair?<\/summary>\n
    \n

    Warning signs: unusual grinding or whining noise, increased vibration, oil leakage, metallic particles on the magnetic drain plug, elevated operating temperature, or detectable play in the output shaft.<\/p>\n<\/div>\n<\/details>\n

    \n❓ Can I visit your manufacturing facility?<\/summary>\n
    \n

    We welcome factory visits and audits from prospective partners. Our production facility is equipped for full tours, and we can arrange local transport from the nearest airport. Contact us to schedule a convenient date.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

    ⭐ Customer Reviews & Field Reports<\/h2>\n
    <\/p>\n
    <\/div>\n
    \n
    \n

    Steve H.<\/p>\n

    ★★★★★<\/p>\n<\/div>\n

    📍 Western Australia, Australia<\/p>\n

    Third unit purchased for our growing fleet. Consistent quality every time. Their factory clearly has disciplined production processes.<\/p>\n<\/div>\n

    \n
    \n

    Rajesh P.<\/p>\n

    ★★★★★<\/p>\n<\/div>\n

    📍 Punjab, India<\/p>\n

    Our mechanic was impressed by the machining quality when he opened the box. Everything was precisely finished and well-protected for shipping.<\/p>\n<\/div>\n

    \n
    \n

    Thabo N.<\/p>\n

    ★★★★★<\/p>\n<\/div>\n

    📍 Free State, South Africa<\/p>\n

    The split-line O-ring seal is a real bonus. Saves us time in the workshop and lets us spend more hours in the paddock. Great design.<\/p>\n<\/div>\n

    \n
    \n

    Ian F.<\/p>\n

    ★★★★☆<\/p>\n<\/div>\n

    📍 Otago, New Zealand<\/p>\n

    Oil change was simple thanks to the drain and fill locations being well-positioned. Small details like this show engineering thought.<\/p>\n<\/div>\n

    \n
    \n

    Henri D.<\/p>\n

    ★★★★☆<\/p>\n<\/div>\n

    📍 Normandy, France<\/p>\n

    We needed a gearbox fast after a mid-season failure. This arrived in 5 days, bolted on in an hour, and has been perfect since.<\/p>\n<\/div>\n<\/div>\n

    \"Agricultural<\/div>\n

    ⚖ EP-1ZS-380 vs. Low-Cost Alternatives<\/h2>\n
    \n\n\n\n\n\n\n\n\n\n\n\n
    Feature<\/th>\nEP-1ZS-380 (Ever-power)<\/th>\nGeneric \/ Low-Cost Alternative<\/th>\n<\/tr>\n<\/thead>\n
    Shipping Protection<\/td>\n✔ Wooden Crate, VCI Paper, Foam Inserts<\/td>\n✘ Cardboard Box, Minimal Protection<\/td>\n<\/tr>\n
    Corrosion Protection<\/td>\n✔ E-Coat + Powder Coat + Zinc Fasteners<\/td>\n✘ Single Paint Layer, Rusts Within 6 Months<\/td>\n<\/tr>\n
    Bearings<\/td>\n✔ Premium Tapered Roller Bearings, 5000+ hr L10 Life<\/td>\n✘ Standard Ball Bearings, 1500 hr L10 Life<\/td>\n<\/tr>\n
    Heat Treatment<\/td>\n✔ Gas Carburizing, 1.0-1.5mm Case Depth<\/td>\n✘ Induction Hardening, 0.3mm Case Depth<\/td>\n<\/tr>\n
    Quality Testing<\/td>\n✔ 100% Factory Tested \u2014 Dimensional, Run-In, Leak<\/td>\n✘ Spot-Checked, Minimal QC Documentation<\/td>\n<\/tr>\n
    Gear Balancing<\/td>\n✔ Matched-Pair Dynamic Balance to ISO G6.3<\/td>\n✘ No Balancing Performed<\/td>\n<\/tr>\n
    Shaft Hardness<\/td>\n✔ Output Journals Induction-Hardened HRC 50-55<\/td>\n✘ No Localized Hardening, Rapid Wear<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    🔄 Related Products & Accessories<\/h2>\n
    \n

    \n\"Overrunning<\/p>\n
    \n

    Overrunning Clutch PTO Shafts<\/p>\n

    PTO shafts with integrated freewheel clutch to protect against driveline back-torque.<\/p>\n<\/div>\n

    <\/a>
    \n\"Mower<\/p>\n

    \n

    Mower Skid Shoes & Rollers<\/p>\n

    Adjustable-height skid shoes and gauge rollers for precise mowing height control.<\/p>\n<\/div>\n

    <\/a>
    \n\"Gearbox<\/p>\n

    \n

    Gearbox Oil & Lubricants<\/p>\n

    EP gear oils, synthetic lubricants, and greases formulated for agricultural gearbox service.<\/p>\n<\/div>\n

    <\/a><\/div>\n

    Browse our complete range of agricultural transmission components<\/a> including PTO shafts, gears, pulleys, chains, and sprockets \u2014 all engineered to integrate seamlessly with EP-1ZS-380 gearboxes.<\/p>\n<\/div>\n

    🏆 Certifications & Quality Standards<\/h2>\n

    Manufactured under ISO 9001:2015 and audited annually by international OEM customers, the EP-1ZS-380 represents our commitment to world-class quality. Gear material certificates (3.1), heat-treatment records, bearing lot traceability, and final inspection reports are maintained for every production batch and available upon customer request.<\/p>\n

    🏭 Why Choose Ever-power Australia Mower Gearbox Co.,Ltd.?<\/h2>\n

    At Ever-power Australia Mower Gearbox Co.,Ltd., we are not just a gearbox factory \u2014 we are a full-service power transmission partner. From initial application engineering and 3D prototype modelling through to volume production, global logistics, and after-sales technical support, we manage the complete product lifecycle. Our 25500 m\u00b2 facility in China is audited annually by international OEM customers and consistently rated among the top-tier suppliers in the agricultural transmission sector.<\/p>\n

    \"PTO<\/div>\n
    \n

    📞 Get Your EP-1ZS-380 Quote Today<\/h3>\n

    Need the EP-1ZS-380 shipped fast? In-stock standard models dispatch within 3-5 business days. Contact us now to confirm availability and lock in today’s pricing before your next mowing season.<\/p>\n

    Request a Quote<\/a>Browse All Products<\/a><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

    Rated at 100 HP with a 1:1.24 ratio and module 7 gears, the EP-1ZS-380 is built for sustained heavy-duty cutting. Sugarcane field managers and tropical vegetation contractors select this spline-driven gearbox for its ability to maintain rated torque output through long shifts in hot, humid conditions.<\/p>","protected":false},"featured_media":1402,"comment_status":"closed","ping_status":"open","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[3074],"product_tag":[3200,3203,3204,3201,3202],"class_list":{"0":"post-1465","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-mower-gearbox","7":"product_tag-100hp-rotary-cutter-gearbox","8":"product_tag-heavy-duty-pto-transmission","9":"product_tag-high-torque-mower-gearbox","10":"product_tag-module-7-mower-gearbox","11":"product_tag-spline-drive-gearbox","13":"first","14":"instock","15":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/mowergearbox.top\/it\/wp-json\/wp\/v2\/product\/1465","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mowergearbox.top\/it\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/mowergearbox.top\/it\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/mowergearbox.top\/it\/wp-json\/wp\/v2\/comments?post=1465"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mowergearbox.top\/it\/wp-json\/wp\/v2\/media\/1402"}],"wp:attachment":[{"href":"https:\/\/mowergearbox.top\/it\/wp-json\/wp\/v2\/media?parent=1465"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/mowergearbox.top\/it\/wp-json\/wp\/v2\/product_brand?post=1465"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/mowergearbox.top\/it\/wp-json\/wp\/v2\/product_cat?post=1465"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/mowergearbox.top\/it\/wp-json\/wp\/v2\/product_tag?post=1465"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}